Staying at Fern's location was an excellent experience. It was far enough away from the main roads that it was quiet but close enough to walk to the Sutthisan MRT station (about a 5-minute walk). From the Sutthisan MRT station, you are only 5 stations away from the Sukhumvit MRT station (quick travel to Terminal 21/Asok BTS station). There are also several stores (7-Eleven, of course!) in the area that carry basic necessities. A nearby restaurant I frequented was Kinza Gyoza where you could get 30 gyoza pieces for 200 THB! The condo had useful amenities including a pool in the middle of the condo area with a gym and coin-operated laundry machines nearby. It also had 2 security guards on duty at all times, keycard access, and passcode entry to the Airbnb.
Fern's place was a great value and her location made it really easy to get around. Whenever I'm back in town, I'll be sure to try and book this Airbnb!